In this chapter we discuss the two formal languages for the relational model: the relational algebra and the relational calculus. The main contents in this chapter include: Example database application (COMPANY), overview of the QBE language (appendix D),... Inviting you to refer.
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Lecture Fundamentals of database systems: Chapter 6 - Emasri, Navathe
Lecture Fundamentals of database systems: Chapter 6 - Emasri, Navathe
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Fundamentals of Database Systems Database Systems Relational algebra Relational calculus Database application Relational modelTài liệu có liên quan:
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